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No. 295,215. Patented Mar. 18, 1884.

W names' M11/uw Unirse STATES Marani* Carien,

RUE'L XV. il/THITNEY, OF CLEVELAND, OHIO, ASSIGXOR 'IO THE LEADER SEVINGMACHINE COMPANY, OF SAME'PLACE.

FLY-WHEEL.

SPECIFICATION forming part of Letters Patent No. 295,215, dated March18, 1884.

(No model l T0 CIJ/ who/lt t may colli/Cerfa:

Beit known that I, Ruini-XV.' VnrrNnY, a citizen of the United States,residing at Cleveland, in. the county of Cuyahoga and State of Ohio,have invented cert-ain new and useful Improvements in Fly-Wheels, ofwhich the iollowing is aspeciiication, reference beingh had thereintothe accompanying drawings, in which* Figure l is a vertical section ofa iiy-wheel embodying my invention. Fig. 2 is a side elevation with thedisk removed. Fig. 3 is a perspective of the disk and the binding-bolt.Fig. 4 is a perspective ci' the binding-bolt, and Fig. 5 is amodication.

' Like letters refer to like parts in all the iignres.

My invention relates to that class of ily` wheels which, or the adjunctsof which, are adapted to divert the power applied from the main machine`with which the flywheel is connected, to independentmechanism, Vwherebythe latter may be operated while the former is at rest, and althoughprimarily and principally set forth herein as for use uponsewingmachines, my said invention is also fully and readily applicableto any mechanism which comprises independently operative parts, which itis desirable at will to use separately, and I therefore do not limitmyself to an application of my said invention to sewing-machines, butreserve myl right to adapt the same for use upon any machine whichpermits of its use, or which, by the exercise of ordinary mechanicalskill, can be Ina-de to permit its use. Taking a sewing-machine providedwith a bobbin-winding,mechanism as an example of a machine which isadapted to receive and make use of my invention, it is well known thatsaid bobbin-winding mechanismr is constructed to be thrown in contactwith the belt which serves to convey motion fromthe treadle or crankshaft to the main shaft of the machine, and to be operated. In suchcases it is apparent that the machine is also operated during theoperation of the bobbin-winding mechanism, and itis the object of theclass of ily-wheelsto which my invention relates to obvia-te thenecessity of the simultaneous opera-tion of both mechanisms at suchtimes.

Other objects and advantages of my invention will appear in thefollowing description of its construction and operation, and the novelfeatures of the same will he specifically set forth in the claims.

A represents the main shaft of a machine, and B a ily-wheel mountedthereon and secured rigidly thereto-in this instance by a setscrew, b,but any other well-known devices may be used instead of said set screwfor the iirm' connection of the fly-wheel with the shaft. The hub of thefly-wheel is cut out to form a sleeve, B', and a rim or shoulder, B2,and although shown as interiorly and continuously fitting the shaft, thesleeve may not be so constructed, if desired. Any usual balance weight,C, may he secured to the wheel within the hub and between the sleeve andrim, but in this instance it 'performs an additional function,hereinafter described.

D represents a disk having a peripheral belt-groove, D, and is adaptedto rotate upon the sleeve B of the hub. In this instance the disk isprovided with a sleeve, D2, fitted to the sleeve B and extending 4withinthe hub. rlhe distance to which it shall extend is not essential, as allthat is desirable is that the disk be mounted, directlyor indirectly,upon the shaft vA, and be capable of longitudinal movement upon thesleeve B', so that when held snugly against the rim or shoulder B2 ofsaid disk the wheel and the shaft shall revolve as one piece..

The means or binding device employed in this instance for drawing andholding the disk in firm contact with the rini or shoulder Bicom prisesa headed holt, E, and an interior circumferential groove, D, formed inthe disk D, into which groove the head E ofthe bolt C IOO As thus fardescribed, it is evident that the same operation could be attained werethe groove D3 vmade eXteriorly and the bolt E relatively located; and sofar as the particular lo cation of the grooveis concerned I do not limitmyself.

To prevent the bolt from revolving in the groove, which would haveatendency to loosen or run off the nut, I fiatten or cut away a portionof the head, so as to produce the surface e, (see Fig. 4;) but for thispurpose the head may be pivoted upon the body, so as to rotate thereon7or the body may be made square in cross-section; but these modificationsincrease the expense of manufacture and tend to increased friction andwear of the parts, andl hence I prefer the construction shown. In thisinstance, though ynot essential, I have shown the bolt passing throughthe weight C, and I,

thereby gain a longer bearing for the bolt, which is'advantageous, inthat it renders the connection of the parts firmer and preventsaccidental bending of the bolt, whereby the head thereof would be thrownout of line with the groove D3.

If desired, as shown in l, the hub of the wheel may be provided with abelt-groove, B3, in which case, in order to operate the diskindependently of the wheel, the belt would be shifted from said grooveinto the groove D of the disk, and this change in the position of thebelt may be useful, in that it might be the means of conveying powertothe bobbin-winder without shifting its position to bring it in contactwith the belt, as would be the case were the beltrnn continuously in thegroove ofthe disk.

Suitable oil-holes, D4D5, are shown for lubricating the sleeve anddisk-groove.

I deem it proper to state that I do not wish to be understood aslimiting myself to the eX- act proportion7 construction, and arrangementof the partshereinshown, but I may alter the same in any manner and toany extent within the skill of persons conversant in the construction ofpower-conveying mechanisms.

As before indicated,the disk may be mounted directly upon the shaft solong as it is capable of independent rotation thereon, and capable alsoof longitudinal movement toward and away from the hub of the wheel.

In using the terms circnmferentially grooved relative to the disk, Imean the groove D, whether located interiorly or eX- teriorly, and inunison or in company with the belt-groove; but for finished appearance Iprefer the interior location of said groove.

Having described my invention and its operation, what I claim isi l. Thecombination of a fiy-wheelprovided with a rim or shoulder, a disk havinga beltgroove, and an interior circumferential groove, with a bindingdevice, substantially as specifled.

2. The combination of a ily-wheel having a sleeve and a rim or shoulder,a disk having a belt-groove, and a sleeve adapted to rotate and to movelongitudinally upon the sleeve of the wheel, with a binding device,substantially as specified.

3. The combination of a belt-disk having a circumferential groove, and abinding device projecting into said groove and through the hub of aily-wheel, substantially as specied.

4. The disk D, having the belt-groove D, the sleeve D2, and the grooveD3, substantially 'as shown and described.

5. The combination of the disk D, having the belt-groove D and thegroove D, with the bolt E, having the head E cut away, as at e,substantially as shown and described.

6. rlhecolnbination of the wheel B, provided with the rim or shoulder B2and sleeve B', the disk D, having the groove D3, bolt E, having the headE, the weight C, and nut E2, substantially as shown and described.

7. rlhe combination of the wheel B, having the rim or shoulder Bgandsleeve B,'with the disk D, having the belt-groove D', sleeve D2, andgroove D, and with the bolt E, having the head E', weight 0, and nut E2,substantially as speciiied.`

In testimony whereof I affix my signature in presence of two witnesses.

' RUEL W. WHITNEY.

Witnesses:

A. A. STEARNs, W. C. WILSON.

